کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
746204 | 894447 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast-response ozone sensor with ZnO nanorods grown by chemical vapor deposition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Nanostructures of ZnO grown by chemical vapor deposition were used as sensing materials. These materials, ZnO nanorods, were characterized by scanning electron microscopy (SEM), photoluminescence (PL) and X-ray diffraction (XRD). The ozone sensing properties of various ZnO nanomaterials were studied. Under 2.5 ppm ozone, ZnO nanorods showed a rapid response time of 45 s and recovery time of 5 s, and the sensor response (S, the ratio of the resistance in an ozone gas without UV to resistance in air with UV, S = Rozone/Rair) is 850. The low defect density and high mobility accounts for the fast response and recovery times. The sensor response was measured in the range from 1 to 2.5 ppm ozone in this study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 144, Issue 1, 29 January 2010, Pages 120–125
Journal: Sensors and Actuators B: Chemical - Volume 144, Issue 1, 29 January 2010, Pages 120–125
نویسندگان
Forest Shih-Sen Chien, Chang-Ren Wang, Yu-Lin Chan, Hsiao-Lan Lin, Min-Hung Chen, Ren-Jang Wu,